# std::type_index::hash_code

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< cpp‎ | types‎ | type index

std::size_t hash_code() const noexcept; |  | (since C++11)

Returns the hash code of the associated std::type_info object. Equivalent to calling `type_info::hash_code` directly.

### Parameters

(none)

### Return value

The hash code of the associated std::type_info object.

### Example

| This section is incomplete Reason: no example

### Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
LWG 2144 | C++11 | `type_index::hash_code` was not required to be noexcept | required

### See also

std::hash<std::type_index> (C++11) | hash support for `std::type_index` (class template specialization)

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